AU2020448169A1

AU2020448169A1 - Bolt having opening

Info

Publication number: AU2020448169A1
Application number: AU2020448169A
Authority: AU
Inventors: Chang Gi Im
Original assignee: Bolts One Co Ltd
Current assignee: Bolts One Co Ltd
Priority date: 2020-05-11
Filing date: 2020-06-30
Publication date: 2022-08-18
Also published as: KR102246328B1; CN113994109B; BR112022017054A2; EP4151868A1; US20210348639A1; CA3167486A1; WO2021230420A1; CN113994109A; JP2023519649A; EP4151868A4

Abstract

Provided is a bolt which includes a head part and a screw part so as to be fastened to a structure through the screw part while rotating by means of a tool, and which comprises: a coupling groove which is formed in the shape of a groove having a cross section corresponding to the tool, and which is formed at the head part or the screw part to permit coupling of the tool thereto; and an opening, which is formed in a hole shape at a portion of the coupling groove to expose, to the outside of the head part or the screw part, at least a portion of the tool coupled to the coupling groove.

Description

DESCRIPTION BOLT PROVIDED WITH OPENINGS

Technical Field

The embodiments disclosed herein relate to a bolt

including a head part and a threaded part, and more

particularly to a bolt provided with openings that is

provided with openings, thereby allowing the height of a

head part to be reduced.

Background Art

In general, a bolt includes a threaded part configured

such that threads are formed on the outer circumferential

surface of a shank, and a head part formed on one side of

the threaded part and configured to allow the bolt to be

coupled with various types of tools, as disclosed in Korean

Utility Model Application Publication No. 1999-0009107.

Such a conventional bolt performs fixing or fastening

in such a manner that a tool such as a driver or a wrench is

coupled to a tool coupling recess formed in the head part,

the head part and the threaded part are rotated by the tool,

and the threaded part is fastened to a structure such as a

nut or is fastened directly to the base material of a

structure made of wood.

In this case, in the conventional bolt, the depth of

the tool coupling recess must be secured to a predetermined length for the stable coupling of a tool, and accordingly, the head part must also be secured to a predetermined height.

It is obvious that when the tool coupling recess is

extended to the threaded part, the height of the head part

can be made low. However, in this case, a problem arises in

that the thickness of the threaded part greater than the

thickness of a tool must be secured.

Furthermore, the conventional bolt has a problem in

that the fastening state of the head part cannot be detected

through a tool because the tool is completely accommodated

in the tool coupling recess.

Moreover, the conventional bolt has a problem in that

the threaded part is unintentionally rotated reversely and

loosened in the event of repeated vibration or shock because

the head part cannot be fixed to a structure after the

threaded part has been fastened to the structure.

Therefore, there is a demand for a new technology

capable of overcoming the above-described limitations of the

related art.

Meanwhile, the above-described background technology

corresponds to technical information that has been possessed

by the present inventor in order to contrive the present

invention or that has been acquired in the process of

contriving the present invention, and can not necessarily be

regarded as well-known technology that had been known to the

public prior to the filing of the present invention.

Disclosure

Technical Problem

An object of the embodiments disclosed herein is to

propose a bolt provided with openings, in which openings

through which portions of a tool may be exposed are formed

in portions of a coupling recess into which the tool is

coupled, so that the height of a head part may be made

relatively low without forming a thick threaded part.

Furthermore, an object of the embodiments disclosed

herein is to propose a bolt provided with openings, which

allows portions of a tool to protrude through openings

formed in a coupling recess, so that the fastening state of

a head part may be detected through the protruding portions.

Moreover, an object of the embodiments disclosed

herein is to propose a bolt provided with openings, which

allows a head part to be fixed in a state in which fastening

is completed, so that the bolt may be prevented from being

undesirably loosened.

Technical Solution

As a technical solution for solving the above

described technical problem, according to an embodiment,

there is provided a bolt provided with openings, the bolt

including a head part and a threaded part and being fastened

to a structure through the threaded part while being rotated

by a tool, the bolt further including: a coupling recess formed in the head part or the threaded part while forming a recess shape having a cross section corresponding to that of the tool, and configured to allow the tool to be coupled thereto; and one or more openings formed in portions of the coupling recess in hole shapes, and configured to expose at least portions of the tool, coupled to the coupling recess, out of the head part or the threaded part.

The coupling recess may include: an entrance portion

formed in the head part, and configured to form an entrance

for the accommodation of the tool; and an accommodation

portion configured to extend from the entrance portion to

the threaded part, to accommodate the tool, to extend to the

threaded part through the head part, and to allow the

openings to be formed in portions thereof.

The openings may be formed a boundary portion between

the head part and the threaded part while being formed in

the portions of the accommodation portion.

The entrance portion may be formed to have a width

greater than that of the threaded part; and the

accommodation portion may extend at a predetermined inclined

angle so that the width thereof is narrowed gradually in a

direction from the entrance portion to the threaded part.

The openings may be formed in a boundary portion

between the head part and the threaded part while being

formed through the inclination of the accommodation portion.

The accommodation portion may extend through the

medium of the openings with the angle of the inclination set to an angle passing though the boundary portion between the head part and the threaded part; and the openings may expose the portions of the tool coupled to along the inclination of the accommodation portion while allowing the portions of the tool to protrude out of the head part and the threaded part.

The bolt may further include at least one anti

loosening protrusion configured to protrude from the bottom

surface of the head part and to prevent the threaded part

from being loosened by coming into close contact with and

being caught on the structure in response to the fastening

of the threaded part.

Advantageous Effects

According to any one of the above-described technical

solutions, there may be proposed the bolt provided with

openings, in which the openings are formed in the boundary

portion between the head part and the threaded part as the

accommodation portion constituting part of the coupling

recess to which the tool is coupled is extended at an angle

passing through the boundary portion between the head part

and the threaded part, so that the height of the head part

may be formed to be lower than those of conventional head

parts, with the result that the material of the bolt may be

reduced and the volume and weight thereof may also be

reduced.

According to any one of the above-described technical

solutions, there may be expected the effects of discharging the foreign materials introduced into the coupling recess through the openings and dissipating the heat applied to the head part through the openings.

According to any one of the above-described technical

solutions, there may be proposed the bolt provided with

openings, which allows portions of a tool to protrude

through the openings, so that when the head part is fastened

to a structure, the protruding portions of the tool first

come into contact with the structure, with the result that

the fastening state of the head part may be detected through

the tool.

According to any one of the above-described technical

solutions, there may be expected the effect of fixing the

head part to a structure by introducing an adhesive through

the openings after the head part has been fastened to the

structure.

According to any one of the above-described technical

solutions, there may be expected the effect of preventing

the head part from loosening undesirably because the anti

loosening protrusions formed on the bottom of the head part

come into close contact with and are caught on a structure.

The effects that can be obtained by the embodiments

disclosed herein are not limited to the above-described

effects, and other effects that have not been described

above will be clearly understood by those having ordinary

skill in the art, to which the present invention pertains,

from the foregoing description.

Description of Drawings

FIG. 1 is a perspective view showing a bolt provided

with openings according to an embodiment;

FIG. 2 is a longitudinal sectional view showing the

bolt provided with openings according to the embodiment;

FIG. 3 is a front view showing a state in which a tool

is coupled to the bolt provided with openings according to

the embodiment;

FIG. 4 is a cut-away perspective view showing the main

part of the bolt provided with openings according to the

embodiment;

FIG. 5 is a bottom perspective view showing a bolt

provided with openings according to another embodiment; and

FIG. 6 shows schematic diagrams illustrating the

comparisons between bolts provided with openings according

to embodiments and conventional bolts.

Mode for Invention

Embodiments of the present invention will be described

in detail below with reference to the accompanying drawings

so that those of ordinary skill in the art to which the

present invention pertains can easily practice them.

However, the present invention may be embodied in various

different forms and is not limited to the embodiments

described herein. Furthermore, parts irrelevant to the

description are omitted to clearly illustrate the present invention in the drawings, and similar reference numerals are assigned to similar portions throughout the specification.

Throughout the specification, when one portion is

described as being "connected or coupled" to another

portion, this includes not only a case where the one portion

is "directly connected or coupled" to the other portion but

also a case where the one portion is "indirectly connected

or coupled to the other portion with a third element

disposed therebetween." Furthermore, when one portion is

described as "including or comprising" one component, this

does not mean that the portion does not exclude another

component but means that the portion may further include

another component, unless explicitly described to the

contrary.

Embodiments will be described in detail below with

reference to the accompanying drawings.

FIG. 1 is a perspective view showing a bolt provided

with openings according to an embodiment, FIG. 2 is a

longitudinal sectional view showing the bolt provided with

openings according to the embodiment, FIG. 3 is a front view

showing a state in which a tool is coupled to the bolt

provided with openings according to the embodiment, FIG. 4

is a cut-away perspective view showing the main part of the

bolt provided with openings according to the embodiment, and

FIG. 5 is a bottom perspective view showing a bolt provided

with openings according to another embodiment.

A bolt 10 provided with openings according to the

present embodiment includes a head part 1 and a threaded

part 2, as shown in FIGS. 1 and 2. The bolt 10 provided

with openings is a fastener that is fastened to a structure

through the threaded part 2 while being rotated by a tool 3

such as a driver.

The bolt 10 provided with openings may include a

coupling recess 100 and openings 200.

The coupling recess 100 is a portion that provides a

coupling portion for the tool 3, and is formed in a recess

shape corresponding to that of the tool 3 so that the tool 3

can be inserted and coupled thereinto.

For example, the coupling recess 100 may be formed in

a "+" cross-sectional shape as shown in FIG. 1 and allow the

coupling of a "+"-shaped driver. The coupling recess 100

may be formed in a "-" cross-sectional shape unlike the

shape shown in the drawing and allow the coupling of a "-"

shaped driver. Alternatively, the coupling recess 100 may

be formed in a cross-sectional shape corresponding to the

cross-sectional shape of a polygonal wrench.

In other words, the coupling recess 100 may be formed

in a shape corresponding to the shape of the tool regardless

of the type of tool.

The coupling recess 100 may be formed in the head part

1, as shown in FIGS. 1 and 2. Unlike in the method shown in

the drawing, it may be formed in the threaded part 2 and

allow the tool 3 to be coupled thereto.

The bolt 10 provided with openings according to the

present embodiment may be configured such that the coupling

recess 100 extends to the head part 1 and the threaded part

2, as shown in FIG. 2.

More specifically, the coupling recess 100 may include

an entrance portion 110 and an accommodation portion 120, as

shown in FIG. 2.

The entrance portion 110 is a portion forming the

entrance of the coupling recess 100 configured to

accommodate the tool 3, and may be formed in the head part

1.

The entrance portion 110 may be formed to have a width

corresponding to the width of the tool 3. Preferably, the

entrance portion 110 may be formed to have a width greater

than that of the threaded part 2, as shown in FIG. 2, but is

not limited thereto.

The accommodation portion 120 is a portion extending

from the inlet portion 110 to the threaded part 2, and

accommodates the tool 3 coupled through the entrance portion

110.

The accommodation portion 120 may extend to the

threaded part 2 through the head part 1 while extending from

the entrance portion 110 toward the threaded part 2.

Openings 200 to be described later are formed, so that

portions of the tool 3 may be exposed to the outside.

In this case, the accommodation portion 120 may extend

while forming a width corresponding to the width of the tool

3.

For example, the accommodation portion 120 may be

formed to extend to the threaded part 2 while forming the

same width as the entrance portion 110. The accommodation

portion 120 may be formed to extend while forming an

inclination of a predetermined angle so that the width

thereof is narrowed gradually in a direction from the

entrance portion 110 to the threaded part 2.

In particular, when the width of the entrance portion

110 is formed to be greater than the width of the threaded

part 2, as shown in FIG. 2, the accommodation portion 120

may extend while forming an inclination so that the width

thereof is narrowed in the direction of the threaded part 2.

The accommodation portion 120 may extend to reach a width

less than the width of the threaded part 2 while extending

to the threaded part 2.

The openings 200 are portions that are formed in

portions of the coupling recess 100 in the shape of holes,

as shown in FIG. 2, so that at least portions of the tool 3

coupled to the coupling recess 100 are exposed out of the

head part 1 or the threaded part 2, as shown in FIG. 3.

In other words, the openings 200 may expose portions

of the tool 3 by allowing portions of the coupling recess

100 to communicate with the outside, and the effect of

discharging the foreign materials introduced into the

coupling recess 100 or dissipating the heat applied to the

head part 1 may be expected.

Furthermore, the openings 200 may enable the head part

1 or the threaded part 2 to be fixed to the base material of

a structure by allowing the introduction of an adhesive

after the fastening of the threaded part 2 has been

completed.

The openings 200 may be formed in the accommodation

portion 120 forming part of the coupling recess 100, and may

be formed through the head part 1 or the threaded part 2.

In this case, when the openings 200 are formed through

the head part 1 or the threaded part 2, portions of the tool

3 accommodated in the accommodation portion 120 may be

exposed to be seen through the openings 200, but the tool 3

may not be exposed while protruding out of the head part 1

or the threaded part 2.

Meanwhile, the openings 200 may be formed in the

accommodation portion 120, and may be formed through the

boundary portion between the head part 1 and the threaded

part 2, as shown in FIGS. 2 and 4.

In this case, when the accommodation portion 120

extends at an angle passing through the boundary portion

between the head part 1 and the threaded part 2 while

extending along an inclination of an angle at which the

width thereof is narrowed gradually in the direction of the

threaded part 2, the openings 200 may connect the inclined

surface of the accommodation portion 120 while being formed

through the boundary portion between the head part 1 and the

threaded part 2.

In other words, the accommodation portion 120 may

extend through the medium of the openings 200 while

extending along an inclination of an angle passing through

the boundary portion between the head part 1 and the

threaded part 2.

In this case, as the tool 3 is coupled along the

inclined surface of the accommodation portion 120, portions

of the tool 3 may be exposed while protruding out of the

head part 1 and the threaded part 2, as shown in FIG. 3.

Accordingly, in the bolt 10 provided with openings

according to the present embodiment, the height of the head

part 1 may be formed to be lower than that of a conventional

bolt 5 and also the depth of the coupling recess 100 may be

formed to be relatively deep, as shown in FIG. 6.

The openings 200 may be applied regardless of the

shape of the head 1, such as the shape of a flat head bolt

shown in FIG. 6(a) or the shape of a round head bolt shown

in FIG. 6(b), and thus the height of the head part 1 may be

allowed to be relatively low.

Furthermore, the tool 3 is exposed to the outside

through the openings 200, so that when the threaded part 2

is fastened to a structure, the completion of the fastening

of the threaded part 2 may be detected as the tool 3 comes

into direct contact with the surface of the structure.

It is obvious that even when the accommodation portion

120 extends while maintaining the same width as the entrance

portion 110 and even when the accommodation portion 120 extends at an angle not passing through the boundary portion between the head part 1 and the threaded part 2, the openings 200 may be formed through the boundary portion between the head part 1 and the threaded part 2. In this case, although the openings 200 may expose portions of the tool 3 to be seed through the openings 200 while being formed through the boundary portion between the head part 1 and the threaded part2, they may not expose portions of the tool 3 while allowing the portions of the tool 3 to protrude out of the head part 1 or the threaded part 2.

Meanwhile, a bolt 10 provided with openings according

to an embodiment may further include one or more anti

loosening protrusions 500, as shown in FIG. 5.

The anti-loosening protrusions 500 are portions that

prevent the loosening of the fastened threaded part 2.

More specifically, the anti-loosening protrusions 500

may protrude from the bottom surface of the head part 1

while forming a plurality of anti-loosening protrusions, and

may come into close contact with and be caught on the base

material of a structure by the fastening of the threaded

part 2, thereby preventing the head part 1 from being

rotated arbitrarily.

In this case, the anti-loosening protrusions 500 may

protrude from the bottom of the head part 1 while forming

wedge-shaped cross sections, and may protrude in a direction

opposite to the direction in which the threaded part 2 is

tightened.

In this case, the anti-loosening protrusions 500

protrude in the direction opposite to the direction in which

the threaded part 2 is tightened and are caught on the base

material of the structure. Accordingly, even when repeated

vibration or shock is applied to the head part 1, the anti

loosening protrusions 500 may prevent the threaded part 2

from being loosened by restraining the rotation of the head

part 1.

Meanwhile, the anti-loosening protrusions 500 may

protrude in a direction corresponding to the direction in

which the threaded part 2 is tightened while forming wedge

shaped cross sections.

In this case, the anti-loosening protrusions 500

protrude in a forward direction corresponding to the

direction in which the threaded part 2 is tightened, and

face the surface of a structure when the threaded part 2 is

fastened, thereby stopping the rotation of the threaded part

2.

A method of using the bolt 10 provided with openings

according to the embodiment, which includes the above

described components, and the operational effects thereof

will be described below.

The threaded part 2 may be fastened to a structure

while being rotated by the tool 3 coupled to the coupling

recess 100 of the head part 1.

In this case, as the tool 3 is coupled to the coupling

recess 100, the tool 3 may rotate the head part 1 and the threaded part 2 while partially protruding through the openings 200. In a process in which the threaded part 2 is fastened to a structure, the completion of the fastening of the threaded part 2 may be detected based on a direct contact with the surface of the structure.

Furthermore, since the head part 1 is formed to have a

relatively low height by the openings 200, the volume of an

installation portion may be reduced.

In this case, the head part 1 may be prevented from

being undesirably loosened by being fixed to the surface of

a structure in the state of being caught on the surface of

the structure through the anti-loosening protrusions 500

protruding from the bottom surface of the head part 1.

Meanwhile, the head part 1 may be fixed in the state

of being fastened to a structure by introducing an adhesive

through the openings 200 after the fastening to the

structure has been completed.

As described above, according to the bolt 10 provided

with openings according to the embodiment, the accommodation

portion 120 constituting part of the coupling recess 100

extends at an angle passing through the boundary portion

between the head part 1 and the threaded part 2, and the

openings 200 are formed through the boundary portion between

the head part 1 and the threaded part 2. Accordingly, the

height of the head part 1 is formed to be relatively low, so

that material may be reduced during the manufacture of the

bolt and the volume and weight of the bolt may be also reduced.

The above-described embodiments are intended for

illustrative purposes. It will be understood that those

having ordinary knowledge in the art to which the present

invention pertains can easily make modifications and

variations without changing the technical spirit and

essential features of the present invention. Therefore, the

above-described embodiments are illustrative and are not

limitative in all aspects. For example, each component

described as being in a single form may be practiced in a

distributed form. In the same manner, components described

as being in a distributed form may be practiced in an

integrated form.

The scope of protection pursued through the present

specification should be defined by the attached claims,

rather than the detailed description. All modifications and

variations which can be derived from the meanings, scopes

and equivalents of the claims should be construed as falling

within the scope of the present invention.

Claims

1. A bolt provided with openings, the bolt comprising

a head part and a threaded part and being fastened to a

structure through the threaded part while being rotated by a

tool, the bolt further comprising:

a coupling recess formed in the head part or the

threaded part while forming a recess shape having a cross

section corresponding to that of the tool, and configured to

allow the tool to be coupled thereto; and

one or more openings formed in portions of the

coupling recess in hole shapes, and configured to expose at

least portions of the tool, coupled to the coupling recess,

out of the head part or the threaded part.

2. The bolt of claim 1, wherein the coupling recess

comprises:

an entrance portion formed in the head part, and

configured to form an entrance for accommodation of the

tool; and

an accommodation portion configured to extend from the

entrance portion to the threaded part, to accommodate the

tool, to extend to the threaded part through the head part,

and to allow the openings to be formed in portions thereof.

3. The bolt of claim 2, wherein the openings are

formed a boundary portion between the head part and the threaded part while being formed in the portions of the accommodation portion.

4. The bolt of claim 2, wherein:

the entrance portion is formed to have a width greater

than that of the threaded part; and

the accommodation portion extends at a predetermined

inclined angle so that a width thereof is narrowed gradually

in a direction from the entrance portion to the threaded

part.

5. The bolt of claim 4, wherein the openings are

formed in a boundary portion between the head part and the

threaded part while being formed through an inclination of

the accommodation portion.

6. The bolt of claim 5, wherein:

the accommodation portion extends through a medium of

the openings with an angle of the inclination set to an

angle passing though the boundary portion between the head

part and the threaded part; and

the openings expose the portions of the tool coupled

to along the inclination of the accommodation portion while

allowing the portions of the tool to protrude out of the

head part and the threaded part.

7. The bolt of claim 1, further comprising at least one anti-loosening protrusion configured to protrude from a bottom surface of the head part and to prevent the threaded part from being loosened by coming into close contact with and being caught on the structure in response to fastening of the threaded part.